Description: 【Weather Resistance】: Bird deterrent made of strong material, sturdy and durable, high toughness, weather resistance, can be used in windy or rainy days. 【Work Principle】: The lens is installed on the wind wheel to make the wind wheel use the principle of optical reflection to form an astigmatism area in the area of the bird when the wind wheel is doing repeated movement, so that the birds are afraid of light and dare not approach to build nests and roost. 【Special Design】: The reflector frame of the bird reflective scarer is designed in a bowl shape to the power and increase the power and speed of the bird ; the shaft is designed with a damping coefficient to resist strong wind and will not rotate infinitely. 【360 Degree Reflection】: The top of the bird reflective scare tool is powered by wind, with a 360 degree reflection angle and no driving spots. 【Widely used】: Bird reflector scare device widely used for power , airports, orchards, fish ponds, balconies, farms, warehouses, food processing plants, and ancient building protection and other places. Size Chart: Wing: 19.5cm/7.68inch Lens Diamter: 7.2cm/2.83inch Pole: 16.5cm/6.50inch Total Height: 29cm/11.42inch Rotation Pole Diameter: 41cm /16.14inch Rotation Shaft Height: 6.5cm /2.56inch Package Includes: 1 Bird Reflective Scare Device